Safety window-catch



C. E. STROM AND C. SWA-NSON.

SAFEIY WINDOW CATCH. APPLICATION FILED DEC. [6. l9l8- Patented Aug. 19,1919.

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UNITED STATES PATENT OFFICE.

CARL EDWIN STROM AND CARL SWAN SON, OF NEW BRITAIN, CONNECTICUT.

SAFETY WINDOW-CATCH.

Specification of Letters Patent.

Patented Aug. 19, 1919.

Application filed December 16, 1918. Serial No. 267,005.

To all whom it may concern:

Be it known that we, CARL EDWIN SrnoM, and CARL SWANSON, citizens of Sweden, residin at New Britain, in the county of Hart 0rd and State of Connecticut, have invented certain new and useful Improvements in Safety Window-Catches, of which the following is a specification.

I Our invention relates to improvements in safety window catches, and the object of our improvement is simplicity and economy in construction and convenience and efficiency in use.

In the accompanying drawing Figure 1 is a rear elevation of a window frame or casing and a pair of sashes operatively supported therein and provides a safety window catch according to our invention.

Fig. 2 is a rear elevation on an enlarged scale of the safety window catch shown 1n Fig. 1 and the adjacent parts.

Fig. 3 is a side elevation of the same.

Fig. 4. is a sectional view on the line 4.--4 of Fig. 2.

Fig. 5 is a view part in section and part in side elevation with the members of the locking posltion.

Fig. 7 is a plan view of the blank for the spring keeper that forms part of the keeper member of the safety window catch.

Fig. 8 is a plan view of the blank for the frame or housing for the spring keeper shown in Fig. 7.

Our improved safety window catch is applied to a pair of window sashes mounted for operation in the usual manner in a window casing or frame .10 and comprises two cooperating members that serve to automatically limit the amount of the relative sliding movement of the two sashes in accordance with a predetermined amount by interengaging one with the other, and when so interengaged serve to lock the said two sashes together, substantially as a unit.

When so locked, the two sashes may be positioned relatively to the frame 10 so that the open space between the double sash unit and the frame may be all at the lower end of the sash unit, as shown at 11 in Fig. 1, or may be at the top, or may be sub-divided, with part at the top and part at the bottom, and in any ratio or degree of movement. desired.

The member 12 that is mounted on the lower and inner sash 13 is positioned on the upper edge portion or upper face 14 of the upper cross bar or horizontal bar 15 of the said lower and inner sash 13, bein' held in position by screws 16, and has at t e upper end portion a nose 17 for engaging with the spring keeper 18 that is part of the upper sash member 19.

The parts are constructed and arranged so that the nose 17 is positioned an appreciable distance above the sash bar 15 and projects rearwardly horizontally from the rear face 20 of the body structure 21 of the lower sash member 12, and the tip end of the said nose 17, at the rear is separated from the plane opposed rear face 22 of the particular side bar 23 of the upper sash 24 on which the upper sash member 19 is mounted by a short clearance space.

As shown in Fig. 1 the safety window catch is positioned at the right side, the upper sash member 19 being mounted on the right hand side bar 23 of the upper and outer sash 24 and the lower sash member 12 being positioned in line therewith.

In the preferred form of construction the lower sash member 12 is in the form of a sprin plunger catch device, the nose 1? constltutin the rear end portion of a 'horizontal sli lng bolt 25 that is operatively housed in a barrel 26 at the upper end of the body structure 21 and that is normally projected rearwardly by a spring 27. A nut 28 on the front end of the bolt 25 limits the rearward movement of the bolt 25 and serves as a handle for pulling the bolt 25 forwardly so as to, draw the nose 17 away from the holding or locking position.

The upper sash member 19 is set into a mortise 29 in the side bar 23 and is posltioned above the lower cross bar 30 of the upper sash 24: a suitable distance so that when the two members 12 and 19 are locked together a suflicient opening of the window space will be provided for effective ventilation and at the same time the open space will be sufficiently small to prevent children from falling out and to prevent the entrance therethrough of unauthorized indivlduals.

the said second window catch member bein constructed and arranged so that the said keeper normally overhangs the travel path of the structure of the said lower sash and 15 the said keeper being constructed of resllient material, suitably to yield responsive to contaciing with the said structure of the lower sas 6. In combination, an u peryand a lower sash, a window catch mem er having a stop nose mounted on the said lower sash, a second Window catch member having a keeper for cooperating with the said nose mounted on the said upper sash, the said first mentioned window catch member being positioned on the said lower sash so as to provide clearance between the end of the said nose that is opposed to the said upper sash and the sash structure of the said upper sash,

CARL EDWIN STROM; CARL SWANSON.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Iacents,v

Washington, D. G. 

